The Sport-Thieme Gymfit 33 balance cushion with nubs supports correct posture - With the Sport-Thieme Gymfit 33 balance cushion with nubs you relieve your upper body. The cushion promotes sitting up straight, as the instability of the cushion means that the body's centre of gravity must be maintained. This improves the centre of the body, the back as well as the head and cervical spine and the neck. The nubs on the surface also promote blood circulation and allow more air to circulate. On top of that, they offer a pleasant massage effect. The degree of difficulty of balancing can be adjusted by changing the air pressure via the needle valve. Max. Max. load: 150 kg - Diameter: 33 cm - Colour: Blue - Material: PVC - Filling: Air - Dimensions: ø 33 cm - Area of application: abdomen, neck, back, spine, buttocks - Target group: Adults - Weight: 1.0 kg